A flexible solid-state zinc ion hybrid supercapacitor based on co-polymer derived hollow carbon spheres

2019 ◽  
Vol 7 (13) ◽  
pp. 7784-7790 ◽  
Author(s):  
Shengmei Chen ◽  
Longtao Ma ◽  
Kui Zhang ◽  
M. Kamruzzaman ◽  
Chunyi Zhi ◽  
...  
Keyword(s):  
Solid State ◽  
Zinc Ion ◽  
Carbon Spheres ◽  
Hybrid Supercapacitor ◽  
Hybrid Supercapacitors ◽  
Hollow Carbon ◽  
First Time ◽  
Hollow Carbon Spheres

For the first time solid-state zinc ion hybrid supercapacitors based on co-polymer derived hollow carbon spheres with good flexibility have been developed.

scholarly journals Ultrathin MnO2 nanoflakes grown on N-doped hollow carbon spheres for high-performance aqueous zinc ion batteries

2020 ◽  
Vol 4 (1) ◽  
pp. 213-221 ◽  
Author(s):  
Linlin Chen ◽  
Zhanhong Yang ◽  
Fan Cui ◽  
Jinlei Meng ◽  
Yinan Jiang ◽  
...  
Keyword(s):  
High Performance ◽  
Cycling Performance ◽  
Zinc Ion ◽  
Carbon Spheres ◽  
Hollow Carbon ◽  
Hollow Carbon Spheres

Ultrathin MnO2 nanoflakes grown on N-doped hollow carbon spheres are demonstrated to display improved rate and cycling performance in AZIBs.

MOFs-derived Co9S8-embedded graphene/hollow carbon spheres film with macroporous frameworks for hybrid supercapacitors with superior volumetric energy density

2019 ◽  
Vol 7 (14) ◽  
pp. 8503-8509 ◽  
Author(s):  
Haoting Niu ◽  
Yong Zhang ◽  
Yu Liu ◽  
Bifu Luo ◽  
Na Xin ◽  
...  
Keyword(s):  
Energy Density ◽  
Electrode Materials ◽  
Carbon Spheres ◽  
Hybrid Supercapacitors ◽  
Electrons And Ions ◽  
Hollow Carbon ◽  
Hollow Carbon Spheres

Electrode materials with macroporous structures have desirable structural advantages, which can provide excellent reaction sites for electrons and ions.

Nitrogen-doped hollow carbon spheres with large mesoporous shells engineered from diblock copolymer micelles

2016 ◽  
Vol 52 (3) ◽  
pp. 505-508 ◽  
Author(s):  
Jing Tang ◽  
Jian Liu ◽  
Rahul R. Salunkhe ◽  
Tao Wang ◽  
Yusuke Yamauchi
Keyword(s):  
Diblock Copolymer ◽  
Template Method ◽  
Carbon Spheres ◽  
Nitrogen Doped ◽  
Copolymer Micelles ◽  
Hollow Carbon ◽  
20 Nm ◽  
First Time ◽  
Hollow Carbon Spheres

Nitrogen-doped hollow carbon spheres with engineered large tunable mesoporous (∼20 nm) shells are successfully synthesized for the first time by using a dual-template method.

Enhanced catalytic activity of low-Pt content nanocatalysts supported on hollow carbon spheres for the ORR in alkaline media

MRS Advances ◽  
2020 ◽  
Vol 5 (57-58) ◽  
pp. 2961-2972
Author(s):  
P.C. Meléndez-González ◽  
E. Garza-Duran ◽  
J.C. Martínez-Loyola ◽  
P. Quintana-Owen ◽  
I.L. Alonso-Lemus ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Anion Exchange ◽  
Average Particle Size ◽  
Synthesis Method ◽  
Alkaline Media ◽  
High Catalytic Activity ◽  
Average Particle ◽  
Carbon Spheres ◽  
Hollow Carbon ◽  
Hollow Carbon Spheres

In this work, low-Pt content nanocatalysts (≈ 5 wt. %) supported on Hollow Carbon Spheres (HCS) were synthesized by two routes: i) colloidal conventional polyol, and ii) surfactant-free Bromide Anion Exchange (BAE). The nanocatalysts were labelled as Pt/HCS-P and Pt/HCS-B for polyol and BAE, respectively. The physicochemical characterization of the nanocatalysts showed that by following both methods, a good control of chemical composition was achieved, obtaining in addition well dispersed nanoparticles of less than 3 nm TEM average particle size (d) on the HCS. Pt/HCS-B contained more Pt0 species than Pt/HCS-P, an effect of the synthesis method. In addition, the structure of the HCS remains more ordered after BAE synthesis, compared to polyol. Regarding the catalytic activity for the Oxygen Reduction Reaction (ORR) in 0.5 M KOH, Pt/HCS-P and Pt/HCS-B showed a similar performance in terms of current density (j) at 0.9 V vs. RHE than the benchmark commercial 20 wt. % Pt/C. However, Pt/HCS-P and Pt/HCS-B demonstrated a 6 and 5-fold increase in mass catalytic activity compared to Pt/C, respectively. A positive effect of the high specific surface area of the HCS and its interactions with metal nanoparticles and electrolyte, which promoted the mass transfer, increased the performance of Pt/HCS-P and Pt/HCS-B. The high catalytic activity showed by Pt/HCS-B and Pt/HCS-P for the ORR, even with a low-Pt content, make them promising cathode nanocatalysts for Anion Exchange Membrane Fuel Cells (AEMFC).

N-doped hierarchical porous hollow carbon spheres with multi-cavities for high performance Na-ion storage

2021 ◽  
Vol 506 ◽  
pp. 230170
Author(s):  
Lantao Liu ◽  
Xiangyu Sun ◽  
Yue Dong ◽  
Dengke Wang ◽  
Zheng Wang ◽  
...  
Keyword(s):  
High Performance ◽  
Carbon Spheres ◽  
Hierarchical Porous ◽  
Ion Storage ◽  
Hollow Carbon ◽  
Hollow Carbon Spheres

Recent progress on the design of hollow carbon spheres to host sulfur in room-temperature sodium–sulfur batteries

2020 ◽  
Vol 35 (6) ◽  
pp. 630-645
Author(s):  
Jia-ying Yang ◽  
Hao-jie Han ◽  
Hlib Repich ◽  
Ri-cheng Zhi ◽  
Chang-zhen Qu ◽  
...  
Keyword(s):  
Room Temperature ◽  
Recent Progress ◽  
Carbon Spheres ◽  
Hollow Carbon ◽  
Sodium Sulfur ◽  
Hollow Carbon Spheres

Surface Polymerization and Controlled Pyrolysis: Tailorable Synthesis of Bumpy Hollow Carbon Spheres for Energy Storage

Langmuir ◽  
2021 ◽  
Vol 37 (13) ◽  
pp. 4007-4015
Author(s):  
Qianyi Tao ◽  
Zhifeng Zhu ◽  
Sunjie Ye ◽  
Gaojian Lin ◽  
Hui Chen ◽  
...  
Keyword(s):  
Energy Storage ◽  
Carbon Spheres ◽  
Surface Polymerization ◽  
Hollow Carbon ◽  
Hollow Carbon Spheres
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